On pg. 96 question 10 I’m confused with how you came up with the answer 6, I got the answer -15. How did you come up with 6 I don’t understand?
Same starting graph as the last post, new question:
![](https://i0.wp.com/pwntestprep.com/wp-content/uploads/2021/08/image-7.png?resize=470%2C44&ssl=1)
Find the values of and
by looking to the graph, which contains the points
and
.
![](https://i0.wp.com/pwntestprep.com/wp-content/uploads/2021/08/image-8.png?resize=293%2C300&ssl=1)
So and
. Now,
becomes
.
Go back to the graph—what’s ?
![](https://i0.wp.com/pwntestprep.com/wp-content/uploads/2021/08/image-9.png?resize=293%2C300&ssl=1)
![f(-5)=2](https://i0.wp.com/pwntestprep.com/wp-content/ql-cache/quicklatex.com-ef749a0a4c72148e485f50f08a9f7381_l3.png?resize=78%2C18&ssl=1)
![3f(-5)=3\times 2=6](https://i0.wp.com/pwntestprep.com/wp-content/ql-cache/quicklatex.com-788a9e998a770820682bccae6b5bdbb6_l3.png?resize=147%2C18&ssl=1)